3M PT4RDFP Foam Plug, 3 hr Fire Rating, 4 in, Round, For Use With 3M 2 in Round Fire Barrier Pass-Through Devices

3M Foam Plug, For Use With: 3M 2 in Round Fire Barrier Pass-Through Devices, 3 hr Fire Rating, 4 in, Round

• Foam plugs are re-enterable and reusable
• Easy installation with no cure time saves time and labor
• Helps reduce sound transmission